Tromso: One of the world's best spots for northern lights.

There are several reasons Tromso, known as the capital of the Arctic, is great in winter. It's widely regarded as Norway's most beautiful city and is a base for spotting the northern lights.
There are also several fascinating museums, including the Polar Museum, which offers an insight into the history of Arctic expeditions, and the Tromso Museum, which is famous for its Sami exhibitions.